What is the probability that when a fair coin is flipped 25 times, there will be exactly five heads?
a. 0.00158
b. 53130
c. 1660.3
d. 0.1900
Please select the best answer from the choices provided

Step-by-step explanation:

Use binomial probability:

P = nCr p^r q^(n-r)

where n is the number of trials,

r is the number of successes,

p is the probability of success,

and q is the probability of failure (1-p).

Given n = 25, r = 5, p = 0.5, and q = 0.5:

P = ₂₅C₅ (0.5)⁵ (0.5)²⁵⁻⁵

P = 0.00158

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.